Stationary crack tip fields in elastic-plastic solids: an overview of recent numerical simulations

Narasimhan, R and Subramanya, HY and Patil, SD and Tandaiya, Parag and Ramamurty, U (2009) Stationary crack tip fields in elastic-plastic solids: an overview of recent numerical simulations. In: Journal Of Physics D-Applied Physics, 42 (21). 214005-1-214005-15.

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Abstract

In this paper, an overview of some recent numerical simulations of stationary crack tip fields in elastic-plastic solids is presented. First, asymptotic analyses carried out within the framework of 2D plane strain or plane stress conditions in both pressure insensitive and pressure sensitive plastic solids are reviewed. This is followed by discussion of salient results obtained from recent computational studies. These pertain to 3D characteristics of elastic-plastic near-front fields under mixed mode loading, mechanics of fracture and simulation of near-tip shear banding process of amorphous alloys and influence of crack tip constraint on the structure of near-tip fields in ductile single crystals. These results serve to illustrate several important features associated with stress and strain distributions near the crack tip and provide the foundation for understanding the operative failure mechanisms. The paper concludes by highlighting some of the future prospects for this field of study.

Item Type:	Journal Article
Publication:	Journal Of Physics D-Applied Physics
Publisher:	Institute Of Physics
Additional Information:	Copyright for this article belongs to Institute Of Physics.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	02 Dec 2009 05:28
Last Modified:	19 Sep 2010 05:52
URI:	http://eprints.iisc.ac.in/id/eprint/24980

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